Generation of pre-distortion coefficients
US8648658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jan 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3209
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
There is disclosed a method for generating pre-emphasis coefficients for a pre-emphasis stage of a non-linear distorting device, the method comprising the steps of: capturing, for a given time period, samples of an input signal and samples of an output signal; determining the direction of an error between the captured samples; adjusting the input signal in a direction to reduce the error to generate an estimate of the pre-distorted input signal; generating updated pre-distortion coefficients in dependence on the estimate of the pre-distorted input signal and generated pre-distortion coefficients for one or more previous time periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.